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The Importance of the Precipitation and the Susceptibility of the Slopes for the Triggering of Landslides Along the Roads

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Listed:
  • Clemente Irigaray
  • Francisco Lamas
  • Rachid El Hamdouni
  • Tomás Fernández
  • José Chacón

Abstract

In order to characterise the influence of the heavyrains on the observed landslides during the 1996–1997hydrological cycle, rainfall records for the last 100years are analysed from 104 stations in easternAndalusia. Regarding the amounts of rain recordedbetween October 1996 and March 1997 in the 104stations studied, 31 presented new all-time records;15 presented values that were 80–100% of thepre-1995 record; 49 stations, 80–50%; and 9stations, > 50%. A map has been devised of thesusceptibility of the materials through which thesouth-eastern Andalusian road network crosses,together with an inventory of the damage caused byinstability phenomena on banks and cuttings of theroad network during the winter of 1996–1997. Therelationships between the rainfall during the studyperiod, the damage caused to the road network and thesusceptibility of the materials affected are analysed.The results indicate that there is a clearcorrespondence between the rainfall recorded and thesusceptibility of the materials with the inventorieddamage. It is concluded that the widespread seriousdamage caused in early 1997 to the roads andsurrounding areas in the Alpujarra region and thecoast of the Province of Granada was mainly caused bythe extraordinarily heavy rains. However, considerablyless damage was observed where the susceptibility ofthe terrain is low, thus highlighting the extremeusefulness of terrain-susceptibility maps for riskprevention and territorial planning. Copyright Kluwer Academic Publishers 2000

Suggested Citation

  • Clemente Irigaray & Francisco Lamas & Rachid El Hamdouni & Tomás Fernández & José Chacón, 2000. "The Importance of the Precipitation and the Susceptibility of the Slopes for the Triggering of Landslides Along the Roads," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 21(1), pages 65-81, January.
  • Handle: RePEc:spr:nathaz:v:21:y:2000:i:1:p:65-81
    DOI: 10.1023/A:1008126113789
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    Citations

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    Cited by:

    1. José Antonio Palenzuela & Jorge David Jiménez-Perálvarez & José Chacón & Clemente Irigaray, 2016. "Assessing critical rainfall thresholds for landslide triggering by generating additional information from a reduced database: an approach with examples from the Betic Cordillera (Spain)," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 84(1), pages 185-212, October.
    2. Leticia Merchán & Antonio Martínez-Graña & Carlos E. Nieto & Marco Criado & Teresa Cabero, 2023. "Characterisation of the Susceptibility to Slope Movements in the Arribes Del Duero Natural Park (Spain)," Land, MDPI, vol. 12(8), pages 1-18, July.
    3. Bin Ou-Yang & Chun-Chao Chu & Ya-Bin Da & Xiao-Fei Liu & Hai-Ying Zhang, 2015. "Highway flood disaster risk evaluation and management in China," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 75(2), pages 381-397, February.
    4. J. Jiménez-Perálvarez & C. Irigaray & R. El Hamdouni & J. Chacón, 2009. "Building models for automatic landslide-susceptibility analysis, mapping and validation in ArcGIS," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 50(3), pages 571-590, September.
    5. C. Irigaray & T. Fernández & R. El Hamdouni & J. Chacón, 2007. "Evaluation and validation of landslide-susceptibility maps obtained by a GIS matrix method: examples from the Betic Cordillera (southern Spain)," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 41(1), pages 61-79, April.

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